docs: def points(self):
          '''Return unordered array with all the points in this neurite'''
          # add all points in a section except the first one, which is a duplicate
          _pts = [v for s in self.root_node.ipreorder()
                  for v in s.points[1:, COLS.XYZR]]
          # except for the very first point, which is not a duplicate
          _pts.insert(0, self.root_node.points[0][COLS.XYZR])
          return np.array(_pts)